Injangwe n'imbwa nyinshi ntizizurwa kuva nkiri muto, kugirango rero tumenye imyaka ingahe? Ese kurya ibiryo byo kubura injangwe nibibwana? Cyangwa kurya imbwa ikuze nibiryo by'injangwe? Nubwo wagura itungo kuva nkiri muto, uracyibaza uko itungo rifite imyaka ingahe, ni amezi 2 cyangwa amezi 3? Mu bitaro, mubisanzwe dukoresha amenyo kugirango tumenye igihe amatungo.

Amenyo afite itandukaniro ryingenzi bitewe nibiryo barya nuburyo bwabo bwo kugaburira, kimwe nubunini bwamenyo hamwe nibiryo byakoreshejwe. Kubwibyo, muri rusange, birasobanutse kubibwana nibibwana, mugihe imbwa zikuze, gutandukana birashobora kuba ngombwa. Birumvikana ko ibyo bita gutandukana nabyo biragereranijwe. Birasanzwe ko imbwa yimyaka 5 yo kurya amagufwa kandi ifite amenyo yambara kandi itongana nkimbwa yimyaka 10, ariko ntushobora guhura nimbwa yimyaka 10 hamwe namenyo yimyaka 10 hamwe nimbwa yimyaka 5. Nigeze guhura na nyir'inyamanswa wazanye itungo ryamababi ya zahabu ryavuze ko mfite imyaka 17. Icyo cyari ikintu gikomeye, kandi cyari nkenewe kumenya imyaka yayo no kumererwa kumubiri. Fungura umunwa wacyo urebe amenyo yayo, byagereranijwe ko hafite imyaka 7 gusa. Nibutse imyaka ya sogokuru mubi?

Birumvikana ko kwitegereza amenyo mugihe cy'ubwana birashobora kandi guhishura indwara nyinshi z'amatungo, nko kubura calcium no gusaza amenyo. Ni ngombwa rero kwiga uburyo bwo kwitegereza iterambere ry'amenyo, menya imyaka n'ubuzima.

Imbwa zitangira gutsimbataza amenyo yagenwe kuva 19 kugeza 20 nyuma yo kuvuka; Mu byumweru 4-5, amabere ya mbere na kabiri ni uburebure bungana (incisors); Mubyumweru 5-6 ibyumweru, iryinyo rya gatatu ryo gutema ni uburebure bungana; Kubibwana by'ibibwana 8 by'ibyumweru bibiri, amabere yose akuze, kandi amenyo y'ibere afite umweru kandi ananutse kandi atyaye;

Mu gihe cy'amezi 2-4 nyuma yo kuvuka, imbwa zisimbuza buhoro buhoro amenyo yayo, amena no guhinga ibihuru bishya kuva muri Inciso ya mbere; Guhera ku myaka 5-6 amezi 5-6, gusimbuza inciriya na gatatu na gatatu; Mfite imyaka 8-12, molars yose isimburwa amenyo ahoraho (amenyo ahoraho). Amenyo ahoraho yera yera kandi irabagirana, kandi inka zabanjiriye. Niba umuhondo ugaragara, byerekana tartar;

Iyo imbwa ifite imyaka 1.5 kugeza kumyaka 2, impinga nini ya mandibular (iryinyo ryimbere) irashira kandi ikongerera impinga ntoya, ryitwa impinga; Ku myaka 2.5, impinga ya kabiri ya mandibular (imenyo yo hagati) irashaje; Mfite imyaka 3.5, impinga ya acsillary incinals irashaje; Ku myaka 4.5, impinga yo iryinyo ryo hagati irashaje; Imyaka yingimbi yimbwa irangiye, kandi impinduka ziri mu menyo muri iki gihe ntizigira ingaruka ku myaka nk'ibiryo barya, buhoro buhoro ziragenda zidahwitse.

Guhera ku myaka 5, Incisor ya gatatu na Canine inama kumuhanga wo hasi wambarwa gato (ntabwo ari uguhinduka), kandi incitine zambere na kabiri ni urukiramende rwurukiramende; Ku myaka 6, impinga ya maxillary incisory yambarwa gato, kandi amenyo ya canine arahiga kandi azengurutse; Ku myaka 7, abashinzwe imbwa nini bambarwa numuzi, hamwe nubuso bwa elliptique burebure; Ku myaka 8, incitike nini ya mandibular irambarwa kandi igahambirira; Ku myaka 10, kwambara hejuru ya Inciso ya kabiri ya Mandibular na Maxillary Incitudinalingliptical; Imbwa nini muri rusange zifite ubuzima bwubuzima bwimyaka 10-12 kandi ni gake ihura nigihombo cyo kuba infirire, mubisanzwe kubera kwambara no gutanyagura;

Ku myaka 16, imbwa nto ifite ubuzima burebure, cyangwa ahubwo ni imbwa isanzwe ishaje ifite inka zabuze, amenyo yuzuye ya kantine, hamwe n'amenyo yanini yumuhondo; Mfite imyaka 20, amenyo ya Canine yaraguye kandi nta menyo yari hafi yo mu kanwa. Kurya byari ibiryo byamazi.

Ugereranije n'imbwa zikunze gusya amenyo kubintu bikomeye, bituma bigora kumenya imyaka kubera amenyo yinyoni, amenyo yinjangwe akura buri gihe kandi arashobora gukoreshwa nkibipimo byiza byo gucira abantu imanza.

Amenyo ya kantine yinjangwe ni ndende, ikomeye kandi ityaye, ifite imizi ninama. Iyo umwobo wo mu kanwa ufunzwe, amenyo yo hejuru ya canine iherereye kuruhande rwinyuma ya Amenyo yo hepfo ya Canine. Hano hari icyuho inyuma yinyo ya kiyoni, nikihe cyinjira. Premolar yambere ni ntoya, premolare ya kabiri nini, kandi premolar ya gatatu niyo nini. Byombi byimiburo yo hejuru no hepfo bifite inama enye, hamwe ninsanganyamatsiko yo hagati iba nini kandi ityaye, ishobora gutakaza inyama. Kubwibyo, byitwa no kuba amenyo yahagaritswe.